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<title>C6000 DSP/BIOS Register Usage</title>
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<hr size=2 width="100%" align=left>

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<blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'>

<div>

<p class=MsoNormal align=right style='text-align:right'><a name=wp1094266></a><b><span
style='font-size:10.0pt;font-family:Arial;color:white'>C6x Register Usage </span></b></p>

</div>

<h2><a name=wp1094268></a><span style='font-size:13.5pt;font-family:Arial;
color:#666666'>Arm9 DSP/BIOS Register Usage </span></h2>

<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><a
name=wp1094269></a><span style='font-size:10.0pt;font-family:Arial'>This
document provides a table describing the various Arm9 targets register conventions
in terms of preservation across multi-threaded context switching and
preconditions.</span></p>

<h3><span style='font-size:12.0pt;font-family:Arial;color:#666666'>Overview </span></h3>

<p><a name=wp1091699></a><span style='font-size:10.0pt;font-family:Arial'>In a
multi-threaded application using DSP/BIOS, it is necessary to know which
registers can or cannot be modified. Furthermore, users need to understand
which registers need to be <span class=GramE>saved/restored</span> across a
function call or an interrupt. </span></p>

<p><a name=wp1091705></a><span style='font-size:10.0pt;font-family:Arial'>The
following definitions describe the various possible register handling
behaviors: </span></p>

<ul type=disc>
 <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
     mso-list:l1 level1 lfo3;tab-stops:list .5in'><a name=wp1091670></a><b><span
     style='font-size:10.0pt;font-family:Arial'>Scratch register.</span></b><span
     style='font-size:10.0pt;font-family:Arial'> These registers are <span
     class=GramE>saved/restored</span> by the <span class=SpellE>Hwi</span>
     dispatcher with temporary register bit masks.</span></li>
 <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
     mso-list:l1 level1 lfo3;tab-stops:list .5in'><a name=wp1091671></a><b><span
     style='font-size:10.0pt;font-family:Arial'>Preserved register.</span></b><span
     style='font-size:10.0pt;font-family:Arial'> These registers are <span
     class=GramE>saved/restored</span> during a Task context switch.</span></li>
 <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
     mso-list:l1 level1 lfo3;tab-stops:list .5in'><a name=wp1091672></a><b><span
     style='font-size:10.0pt;font-family:Arial'>Initialized register.</span></b><span
     style='font-size:10.0pt;font-family:Arial'> These registers are set to a
     particular value during <span class=SpellE>Hwi</span> processing and
     restored to their incoming value upon exiting from the interrupt routine.</span></li>
 <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
     mso-list:l1 level1 lfo3;tab-stops:list .5in'><a name=wp1091673></a><b><span
     style='font-size:10.0pt;font-family:Arial'>Read-Only register.</span></b><span
     style='font-size:10.0pt;font-family:Arial'> These registers may be read
     but must not be modified.</span></li>
 <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
     mso-list:l1 level1 lfo3;tab-stops:list .5in'><a name=wp1091692></a><b><span
     style='font-size:10.0pt;font-family:Arial'>Global register.</span></b><span
     style='font-size:10.0pt;font-family:Arial'> These registers are shared
     across all threads in the system. To make a temporary change, save the
     register, make the change, and then restore it.</span></li>
 <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
     mso-list:l1 level1 lfo3;tab-stops:list .5in'><a name=wp1091693></a><b><span
     style='font-size:10.0pt;font-family:Arial'>Other.</span></b><span
     style='font-size:10.0pt;font-family:Arial'> These registers do not fit
     into one of the categories above.</span></li>
</ul>

<h3><a name=wp1090525></a><span style='font-size:12.0pt;font-family:Arial;
color:#666666'>Register Conventions </span></h3>

<div>

<p class=MsoNormal><a name=wp1092768></a><i><span style='font-size:10.0pt;
font-family:Arial'>Table 1 Register and Status Bit Handling</span></i></p>

</div>

<div align=right>

<table class=MsoNormalTable border=1 cellpadding=0 style='mso-cellspacing:1.5pt;
 mso-padding-alt:0in 5.4pt 0in 5.4pt'>
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  <td style='padding:.75pt .75pt .75pt .75pt'>
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  <p class=MsoNormal align=center style='text-align:center'><a name=wp1091888></a><b><span
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  </td>
  <td style='padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal align=center style='text-align:center'><a name=wp1091890></a><b><span
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  </div>
  </td>
  <td style='padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal align=center style='text-align:center'><a name=wp1091892></a><b><span
  style='font-size:10.0pt;font-family:Arial'>Register or Status Bit Name </span><o:p></o:p></b></p>
  </div>
  </td>
  <td style='padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal align=center style='text-align:center'><a name=wp1091894></a><b><span
  style='font-size:10.0pt;font-family:Arial'>Type </span><o:p></o:p></b></p>
  </div>
  </td>
  <td style='padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal align=center style='text-align:center'><a name=wp1091896></a><b><span
  style='font-size:10.0pt;font-family:Arial'>Notes </span><o:p></o:p></b></p>
  </div>
  </td>
 </tr>
 <tr style='mso-yfti-irow:1'>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091898></a><span style='font-size:10.0pt;
  font-family:Arial'>R0-R3, R12 </span></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091900></a><span style='font-size:10.0pt;
  font-family:Arial'>&nbsp; </span></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091902></a><span style='font-size:10.0pt;
  font-family:Arial'>General purpose registers </span></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091904></a><span style='font-size:10.0pt;
  font-family:Arial'>Scratch </span></p>
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  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091906></a><span style='font-size:10.0pt;
  font-family:Arial'>&nbsp; </span></p>
  </div>
  </td>
 </tr>
 <tr style='mso-yfti-irow:2'>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091908></a><span style='font-size:10.0pt;
  font-family:Arial'>R4-R11 </span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091910></a><span style='font-size:10.0pt;
  font-family:Arial'>&nbsp; </span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091912></a><span style='font-size:10.0pt;
  font-family:Arial'>General purpose registers </span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091914></a><span style='font-size:10.0pt;
  font-family:Arial'>Preserved </span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091916></a><span style='font-size:10.0pt;
  font-family:Arial'>&nbsp; </span></p>
  </div>
  </td>
 </tr>
 <tr style='mso-yfti-irow:3'>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091918></a><span style='font-size:10.0pt;
  font-family:Arial'>R13 (SP)</span></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091920></a><span style='font-size:10.0pt;
  font-family:Arial'>&nbsp; </span></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091922></a><span style='font-size:10.0pt;
  font-family:Arial'>Stack pointer </span></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091924></a><span style='font-size:10.0pt;
  font-family:Arial'>Initialized</span></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091926></a><span style='font-size:10.0pt;
  font-family:Arial'>&nbsp;<span class=SpellE>Hwi</span> dispatcher sets to <span
  class=SpellE>Hwi</span> stack before calling ISR</span></p>
  </div>
  </td>
 </tr>
 <tr style='mso-yfti-irow:4'>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091928></a><span style='font-size:10.0pt;
  font-family:Arial'>R14 (LR)</span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091930></a><span style='font-size:10.0pt;
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  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091932></a><span style='font-size:10.0pt;
  font-family:Arial'>Link Register</span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091934></a><span style='font-size:10.0pt;
  font-family:Arial'>Preserved</span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'><a
  name=wp1091936></a>
  <div>
  <p class=MsoNormal><o:p>&nbsp;</o:p></p>
  </div>
  </td>
 </tr>
 <tr style='mso-yfti-irow:5'>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091938></a><a name=wp1091958></a><span
  style='font-size:10.0pt;font-family:Arial'>PSR</span></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'><a
  name=wp1091960></a>
  <div>
  <p class=MsoNormal><o:p>&nbsp;</o:p></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><a name=wp1091962></a><span style='font-size:10.0pt;
  font-family:Arial'>Program Status Register </span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'><a
  name=wp1091964></a>
  <div>
  <p class=MsoNormal><o:p>&nbsp;</o:p></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'><a
  name=wp1091966></a>
  <div>
  <p class=MsoNormal><o:p>&nbsp;</o:p></p>
  </div>
  </td>
 </tr>
 <tr style='mso-yfti-irow:6'>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'><a
  name=wp1091968></a>
  <div>
  <p class=MsoNormal><o:p>&nbsp;</o:p></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091970></a><span style='font-size:10.0pt;
  font-family:Arial'>N,Z,C,V</span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091972></a><span style='font-size:10.0pt;
  font-family:Arial'>Condition Codes </span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091974></a><span style='font-size:10.0pt;
  font-family:Arial'>Preserved </span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091976></a><span style='font-size:10.0pt;
  font-family:Arial'>&nbsp; </span></p>
  </div>
  </td>
 </tr>
 <tr style='mso-yfti-irow:7'>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091978></a><span style='font-size:10.0pt;
  font-family:Arial'>&nbsp; </span></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091980></a><span style='font-size:10.0pt;
  font-family:Arial'>Q </span></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091982></a><span style='font-size:10.0pt;
  font-family:Arial'>Overflow </span></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091984></a><span style='font-size:10.0pt;
  font-family:Arial'>Preserved</span></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091986></a><span style='font-size:10.0pt;
  font-family:Arial'>&nbsp; </span></p>
  </div>
  </td>
 </tr>
 <tr style='mso-yfti-irow:8'>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091988></a><span style='font-size:10.0pt;
  font-family:Arial'>&nbsp; </span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091990></a><span style='font-size:10.0pt;
  font-family:Arial'>GE[3:0] </span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091992></a><span style='font-size:10.0pt;
  font-family:Arial'>Condition Codes</span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091994></a><span style='font-size:10.0pt;
  font-family:Arial'>Preserved </span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091996></a><span style='font-size:10.0pt;
  font-family:Arial'>&nbsp; </span></p>
  </div>
  </td>
 </tr>
 <tr style='mso-yfti-irow:9'>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1091998></a><span style='font-size:10.0pt;
  font-family:Arial'>&nbsp; </span></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092000></a><span style='font-size:10.0pt;
  font-family:Arial'>E </span></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><a name=wp1092002></a><span class=SpellE><span
  style='font-size:10.0pt;font-family:Arial'>Endian</span></span><span
  style='font-size:10.0pt;font-family:Arial'> bit </span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>Preserved
  </span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092006></a><span style='font-size:10.0pt;
  font-family:Arial'>&nbsp; Untouched</span></p>
  </div>
  </td>
 </tr>
 <tr style='mso-yfti-irow:10'>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092008></a><span style='font-size:10.0pt;
  font-family:Arial'>&nbsp; </span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092010></a><span style='font-size:10.0pt;
  font-family:Arial'>A</span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092012></a><span style='font-size:10.0pt;
  font-family:Arial'>Imprecise Abort Disable</span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092014></a><span style='font-size:10.0pt;
  font-family:Arial'>Preserved</span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092016></a><span style='font-size:10.0pt;
  font-family:Arial'>&nbsp; Untouched</span></p>
  </div>
  </td>
 </tr>
 <tr style='mso-yfti-irow:11'>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092018></a><span style='font-size:10.0pt;
  font-family:Arial'>&nbsp; </span></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092020></a><span style='font-size:10.0pt;
  font-family:Arial'>I </span></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092022></a><span style='font-size:10.0pt;
  font-family:Arial'>IRQ Disable</span></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092024></a><span style='font-size:10.0pt;
  font-family:Arial'>Global </span></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092026></a><span style='font-size:10.0pt;
  font-family:Arial'>&nbsp; <span class=SpellE>Hwi_enable</span>/disable/restore
  operate on this bit</span></p>
  </div>
  </td>
 </tr>
 <tr style='mso-yfti-irow:12'>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092028></a><span style='font-size:10.0pt;
  font-family:Arial'>&nbsp; </span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092030></a><span style='font-size:10.0pt;
  font-family:Arial'>F </span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092032></a><span style='font-size:10.0pt;
  font-family:Arial'>FIQ Disable </span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092034></a><span style='font-size:10.0pt;
  font-family:Arial'>Preserved </span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092036></a><span style='font-size:10.0pt;
  font-family:Arial'><span style='mso-spacerun:yes'>?</span>The FIQ bit is preserved
  and untouched by BIOS</span></p>
  </div>
  </td>
 </tr>
 <tr style='mso-yfti-irow:13'>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092038></a><span style='font-size:10.0pt;
  font-family:Arial'>&nbsp; </span></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092040></a><span style='font-size:10.0pt;
  font-family:Arial'>M[4:0] </span></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092042></a><span style='font-size:10.0pt;
  font-family:Arial'>Mode bits </span></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092044></a><span style='font-size:10.0pt;
  font-family:Arial'>Other</span></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092046></a><span style='font-size:10.0pt;
  font-family:Arial'>&nbsp; <span class=GramE>BIOS sets</span> the mode bits to
  System Mode (0b11111) during startup and prior to invoking a <span
  class=SpellE>Hwi</span> thread.</span></p>
  </div>
  </td>
 </tr>
 <tr style='mso-yfti-irow:14'>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092048></a><span style='font-size:10.0pt;
  font-family:Arial'>&nbsp; </span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092050></a><span style='font-size:10.0pt;
  font-family:Arial'>T </span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092052></a><span style='font-size:10.0pt;
  font-family:Arial'>Thumb</span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092054></a><span style='font-size:10.0pt;
  font-family:Arial'>Global</span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092056></a><span style='font-size:10.0pt;
  font-family:Arial'>&nbsp; <span class=GramE>BIOS fully supports</span>
  Arm/Thumb inter-working.</span></p>
  </div>
  </td>
 </tr>
 <tr style='mso-yfti-irow:15'>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'><a
  name=wp1092058></a>
  <div>
  <p class=MsoNormal><o:p>&nbsp;</o:p></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092060></a><span style='font-size:10.0pt;
  font-family:Arial'>&nbsp;J</span></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092062></a><span class=SpellE><span
  style='font-size:10.0pt;font-family:Arial'>Jazelle</span></span></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092064></a><span style='font-size:10.0pt;
  font-family:Arial'>Preserved</span></p>
  </div>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092066></a><span style='font-size:10.0pt;
  font-family:Arial'>&nbsp; Untouched</span></p>
  </div>
  </td>
 </tr>
 <tr style='mso-yfti-irow:16'>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092068></a><span style='font-size:10.0pt;
  font-family:Arial'>R13_svc</span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092070></a><span style='font-size:10.0pt;
  font-family:Arial'>&nbsp; </span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092072></a><span style='font-size:10.0pt;
  font-family:Arial'>Supervisor mode R13</span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092074></a><span style='font-size:10.0pt;
  font-family:Arial'>Other </span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092076></a><span style='font-size:10.0pt;
  font-family:Arial'><span style='mso-spacerun:yes'>? </span>Untouched</span></p>
  </div>
  </td>
 </tr>
 <tr style='mso-yfti-irow:17'>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><a name=wp1092078></a><span style='font-size:10.0pt;
  font-family:Arial'>R14_svc</span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>&nbsp; </span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>Supervisor
  mode R14</span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>Other </span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'><span
  style='mso-spacerun:yes'>? </span>Untouched</span><o:p></o:p></p>
  </td>
 </tr>
 <tr style='mso-yfti-irow:18'>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><a name=wp1092088></a><span class=SpellE><span
  style='font-size:10.0pt;font-family:Arial'>SPSR_svc</span></span><o:p></o:p></p>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>&nbsp; </span><o:p></o:p></p>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>Supervisor
  mode SPSR</span><o:p></o:p></p>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>Other </span><o:p></o:p></p>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'><span
  style='mso-spacerun:yes'>? </span>Untouched</span><o:p></o:p></p>
  </td>
 </tr>
 <tr style='mso-yfti-irow:19'>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><a name=wp1092098></a><span style='font-size:10.0pt;
  font-family:Arial'>R13_abt</span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>&nbsp; </span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>Abort
  mode R13</span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>Other </span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'><span
  style='mso-spacerun:yes'>? </span>Untouched</span><o:p></o:p></p>
  </td>
 </tr>
 <tr style='mso-yfti-irow:20'>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><a name=wp1092108></a><span style='font-size:10.0pt;
  font-family:Arial'>R14_abt</span><o:p></o:p></p>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>&nbsp; </span><o:p></o:p></p>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>Abort
  mode R14</span><o:p></o:p></p>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>Other </span><o:p></o:p></p>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'><span
  style='mso-spacerun:yes'>? </span>Untouched</span><o:p></o:p></p>
  </td>
 </tr>
 <tr style='mso-yfti-irow:21'>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><a name=wp1092118></a><span class=SpellE><span
  style='font-size:10.0pt;font-family:Arial'>SPSR_abt</span></span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>&nbsp; </span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>Abort
  mode SPSR</span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>Other </span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'><span
  style='mso-spacerun:yes'>? </span>Untouched</span><o:p></o:p></p>
  </td>
 </tr>
 <tr style='mso-yfti-irow:22'>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><a name=wp1092128></a><span style='font-size:10.0pt;
  font-family:Arial'>R13_und</span><o:p></o:p></p>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>&nbsp; </span><o:p></o:p></p>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>Undefined
  mode R13</span><o:p></o:p></p>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>Other </span><o:p></o:p></p>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'><span
  style='mso-spacerun:yes'>? </span>Untouched</span><o:p></o:p></p>
  </td>
 </tr>
 <tr style='mso-yfti-irow:23'>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><a name=wp1092138></a><span style='font-size:10.0pt;
  font-family:Arial'>R14_und</span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>&nbsp; </span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>Undefined
  mode R14</span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>Other </span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'><span
  style='mso-spacerun:yes'>? </span>Untouched</span><o:p></o:p></p>
  </td>
 </tr>
 <tr style='mso-yfti-irow:24'>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><a name=wp1092148></a><span class=SpellE><span
  style='font-size:10.0pt;font-family:Arial'>SPSR_und</span></span><o:p></o:p></p>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>&nbsp; </span><o:p></o:p></p>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>Undefined
  mode SPSR</span><o:p></o:p></p>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>Other </span><o:p></o:p></p>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'><span
  style='mso-spacerun:yes'>? </span>Untouched</span><o:p></o:p></p>
  </td>
 </tr>
 <tr style='mso-yfti-irow:25'>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><a name=wp1092158></a><span style='font-size:10.0pt;
  font-family:Arial'>R13_irq</span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>&nbsp; </span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>Interrupt
  mode R13</span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>Initialized</span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'><span
  style='mso-spacerun:yes'>? </span>BIOS sets to top of IRQ stack buffer (<span
  class=SpellE>Hwi.irqStack</span>)</span><o:p></o:p></p>
  </td>
 </tr>
 <tr style='mso-yfti-irow:26'>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><a name=wp1092168></a><span style='font-size:10.0pt;
  font-family:Arial'>R14_irq</span><o:p></o:p></p>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>&nbsp; </span><o:p></o:p></p>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>Interrupt
  mode R14</span><o:p></o:p></p>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>Other </span><o:p></o:p></p>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'><span
  style='mso-spacerun:yes'>? </span>During ISR, points to interrupt return
  address</span><o:p></o:p></p>
  </td>
 </tr>
 <tr style='mso-yfti-irow:27'>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><a name=wp1092178></a><span class=SpellE><span
  style='font-size:10.0pt;font-family:Arial'>SPSR_iq</span></span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>&nbsp; </span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>Interrupt
  mode SPSR</span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>Other </span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'><span
  style='mso-spacerun:yes'>? </span>Untouched</span><o:p></o:p></p>
  </td>
 </tr>
 <tr style='mso-yfti-irow:28'>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092188></a><span style='font-size:10.0pt;
  font-family:Arial'>R8_fiq-R12_fiq</span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'><a
  name=wp1092190></a>
  <div>
  <p class=MsoNormal><o:p>&nbsp;</o:p></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092192></a><span style='font-size:10.0pt;
  font-family:Arial'>FIQ banked registers </span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092194></a><span style='font-size:10.0pt;
  font-family:Arial'>Other</span></p>
  </div>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <div>
  <p class=MsoNormal><a name=wp1092196></a><span style='font-size:10.0pt;
  font-family:Arial'>&nbsp; Untouched</span></p>
  </div>
  </td>
 </tr>
 <tr style='mso-yfti-irow:29'>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><a name=wp1092198></a><span style='font-size:10.0pt;
  font-family:Arial'>R13_fiq</span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>&nbsp; </span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>FIQ mode
  R13</span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>Initialized</span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'><span
  style='mso-spacerun:yes'>? </span>BIOS sets to top of FIQ stack buffer (<span
  class=SpellE>Hwi.fiqStack</span>)</span><o:p></o:p></p>
  </td>
 </tr>
 <tr style='mso-yfti-irow:30'>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><a name=wp1092208></a><span style='font-size:10.0pt;
  font-family:Arial'>R14_fiq</span><o:p></o:p></p>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>&nbsp; </span><o:p></o:p></p>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>FIQ mode
  R14</span><o:p></o:p></p>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>Other </span><o:p></o:p></p>
  </td>
  <td style='background:#CCCCCC;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'><span
  style='mso-spacerun:yes'>? </span>Untouched</span><o:p></o:p></p>
  </td>
 </tr>
 <tr style='mso-yfti-irow:31;mso-yfti-lastrow:yes'>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><a name=wp1092218></a><span class=SpellE><span
  style='font-size:10.0pt;font-family:Arial'>SPSR_fiq</span></span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>&nbsp; </span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>FIQ mode SPSR</span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'>Other </span><o:p></o:p></p>
  </td>
  <td style='background:white;padding:.75pt .75pt .75pt .75pt'>
  <p class=MsoNormal><span style='font-size:10.0pt;font-family:Arial'><span
  style='mso-spacerun:yes'>? </span>Untouched</span><o:p></o:p></p>
  </td>
 </tr>
</table>

</div>

<div>

<p class=MsoNormal><a name=wp1092228></a><a name=wp1091840></a><b><span
style='font-size:10.0pt;font-family:Arial'><o:p>&nbsp;</o:p></span></b></p>

<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:Arial'>Notes: </span></b></p>

</div>

<p><a name=wp1091841></a><span style='font-size:10.0pt;font-family:Arial'>. </span></p>

</blockquote>

<div class=MsoNormal align=center style='text-align:center'>

<hr size=2 width="100%" align=center>

</div>

</div>

</body>

</html>
